Newly Resized Luns not Showing correct LUN Size RHel 5.3
My linux servers are not showing their newly resized fibre Luns after being extended on the fly(online).
The storage guys have successfully resized the LUNS from 1Tb to 2 Tb , but i cannot see the size.
We are running fibre SAN ((on HP EVA kit,PSV450) not ISCSI LUNS on RHEL 5.3 Linux machines.
I have done the following below but unsuccessful, I still cannot see the new size of 2Tb , i still see the old size of 1Tb.Please note that these LUNS are configured as raw devices for oracle and hence no LVMs are used .Have i missed any procedure.I want tt achieve resizing without rebooting the server(s)
Rescan scsi bus
1. echo 1 > /sys/block/sda/device/rescan
echo 1 > /sys/block/sdb/device/rescan
Update Size of your multipath device
multipathd -k"resize map orac_backup"
(seems to fail probably a procedure not needed in this scenario)
I alo tried this to test multipath failover by running]
del path sda
add path sda
del path sdb
add path sdb
All commands (except resize2fs) run successfuly but still old LUN size is showing, the Linux OS or kernel still doesnt see the new Lun size.I have tried several times and also restarted multipath service in between each procedure numbered(listed) above, but still unsuccessful.Please help, any help would be greatly appreciated.